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OBJECTIVES To synthesize the evidence on the risk of HIV transmission through unprotected sexual intercourse according to viral load and treatment with combination antiretroviral therapy (ART). DESIGN Systematic review and meta-analysis. METHODS We searched Medline, Embase and conference abstracts from 1996-2009. We included longitudinal studies of(More)
In patients with HIV-1 infection who are starting combination antiretroviral therapy (ART), the incidence of immune reconstitution inflammatory syndrome (IRIS) is not well defined. We did a meta-analysis to establish the incidence and lethality of the syndrome in patients with a range of previously diagnosed opportunistic infections, and examined the(More)
In the present investigation the entire muscle system of the cyclorhagid kinorhynch Antygomonas sp. was three-dimensionally reconstructed from whole mounts by means of FITC-phalloidin labeling and confocal scanning microscopy. With this technique, which proved to be especially useful for microscopically small species, we wanted to reinvestigate and(More)
The central complex is a highly organized neuropil structure in the insect brain and plays a role in motor control and visual orientation. We describe the distribution of gamma-aminobutyric acid (GABA) immunostaining in the central complex of the locust Schistocerca gregaria in an effort to analyze inhibitory neural circuits within this brain area. Antisera(More)
In Annelida, as well as in other invertebrate taxa, the nervous system is considered to be a very conservative organ system. Immunohistochemical investigations [use of anti-5-HT (serotonin), FMRFamide, and acetylated α-tubulin antibodies] in combination with laser scanning microscopy enable more detailed reanalyses of known structures and detection of new(More)
The nervous systems of juvenile and adult Myzostoma cirriferum Leuckart, 1836, were stained with antisera against 5-HT (5-hydroxytryptamine, serotonin), FMRFamide, and acetylated alpha-tubulin in combination with the indirect fluorescence technique and analyzed by confocal laser scanning microscopy. The central nervous system consists of two small cerebral(More)
A body wall musculature comprising an outer layer of circular fibers and an inner layer of longitudinal fibers is generally seen as the basic plan in Annelida. Additional muscles may be present such as oblique, parapodial, chaetal, and dorsoventral muscles. The longitudinal muscle fibers do not form a continuous layer but are arranged in distinct bands in(More)
We have investigated the anatomical organization of the lower division of the central body in the brain of the locust Schistocerca gregaria. Bodian preparations, Golgi impregnations, and intracellular filling with Lucifer yellow have revealed that the lower division of the central body is organized into six horizontal layers and sixteen vertical columns.(More)
The nervous systems of adult specimens and regenerating fragments of Dorvillea bermudensis ("Polychaeta," Dorvilleidae) were stained with antisera directed against acetylated alpha-tubulin and analyzed by indirect fluorescence and confocal laser scanning microscopy. The anlage of each circumesophageal connective is initially doubled in regenerates and(More)
The polarization pattern of the blue sky serves as an important reference for spatial orientation in insects. To understand the neural mechanisms involved in sky compass orientation we have analyzed the polarization vision system in the locust Schistocerca gregaria. As in other insects, photoreceptors adapted for the detection of sky polarization are(More)